Repair Manual

REAR BEARING ELEMENTS
33
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CAST IRON REAR DRIVE AXLE DIFFERENTIAL
2. ADJUSTMENT OF THE DRIVE PINION BEARINGS
The drive pinion is mounted in the casing together with the two bearings, without the adjustment
washer.
Mount the cardanic flange and tighten the nut at a moment of about 0,20 daNm, so that the
pinion rotates easily at a load between 2 and 3 daNm.
Mount the support S of the comparator dial CC on the cardanic flange.
Remove the support and the dial, dismounting the flange and the inner balls ring of the bearing.
Remove the differential drive pinion from the casing, clamp it in a vice and place on its shaft
the following parts :
- the front bearing washer;
- the bearing inner ring;
- the flange;
- the nut.
Tighten t he nut a t a 9 – 11 daNm moment and place the support with the comparator dial
again on the flange, measuring the difference between the axis and the differential drive pinion
front side. The value of this difference corresponds to the value of the
adjustment washer thickness.
Dismount the followings from the pinion: the flange ,the bearing inner ring and washer.
Remove the pinion from the vice, place it again in the differential casing., mounting the following
parts on the pinion shaft : the adjustment washer, having the thickness
previously established, the bearing washer , the balls inner ring, the annular oil seal , the flange
and the nut, which shall be tightened at a moment of 9 – 11 daNm.
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